Examine source code of Invisible Text Generator

{
  "manifest_version": 3,
  "name": "Invisible Text Generator",
  "version": "1.0",
  "description": "Generate hidden letters and blank characters for WhatsApp, Discord, gaming profiles, and steganography.",
  "action": {
    "default_popup": "popup.html",
    "default_title": "Open Invisible Text Generator"
  },
  "permissions": [
    "clipboardWrite",
    "storage"
  ],
  "icons": {
    "16": "icons/16.png",
    "32": "icons/32.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "invisible-texts@invisibletexts.com",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}